USN-830-1: OpenSSL vulnerability
Ubuntu Security Notice USN-830-1
14th September, 2009
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 9.04
- Ubuntu 8.10
- Ubuntu 8.04 LTS
- Ubuntu 6.06 LTS
Dan Kaminsky discovered OpenSSL would still accept certificates with MD2
hash signatures. As a result, an attacker could potentially create a
malicious trusted certificate to impersonate another site. This update
handles this issue by completely disabling MD2 for certificate validation.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 9.04:
- libssl0.9.8 0.9.8g-15ubuntu3.3
- Ubuntu 8.10:
- libssl0.9.8 0.9.8g-10.1ubuntu2.5
- Ubuntu 8.04 LTS:
- libssl0.9.8 0.9.8g-4ubuntu3.8
- Ubuntu 6.06 LTS:
- libssl0.9.8 0.9.8a-7ubuntu0.10
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to reboot your computer to
effect the necessary changes.